Oaty fish & prawn gratins

Oaty fish & prawn gratins

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(18 ratings)

Prep: 12 mins Cook: 28 mins


Serves 2
Hit all 5 of your recommended fruit and veg intake with these delicious healthy fish and tomato bakes

Nutrition and extra info

Nutrition: per serving

  • kcal359
  • fat6g
  • saturates2g
  • carbs27g
  • sugars9g
  • fibre8g
  • protein48g
  • salt3.4g
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  • 340g bag baby spinach, roughly chopped
  • 400g can chopped tomato with garlic and herbs
  • 225g sustainable white fish fillets, chopped into large chunks
  • small bunch basil, shredded



    Most closely associated with Mediterranean cooking but also very prevalent in Asian food, the…

  • 100g cooked and peeled prawn



    There are thousands of different species of prawn, but tiger, king and North Atlantic are the…

  • 2 tbsp finely grated Parmesan



    Parmesan is a straw-coloured hard cheese with a natural yellow rind and rich, fruity flavour. It…

  • 2 tbsp breadcrumb
  • 2 tbsp oats
  • 170g broccoli, boiled or steamed, to serve



    Like cabbage and cauliflower, broccoli is a brassica and is sometimes known by its Italian name…


  1. Put the spinach in a large colander and pour over boiling water. Once cool enough to handle, squeeze out any excess water, then season.

  2. Tip the tomatoes into a frying pan with some seasoning and simmer for 5 mins to thicken. Add the fish and heat for 1-2 mins – it doesn’t need to be fully cooked at this point. Stir in the basil.

  3. Heat oven to 220C/200C fan/gas 7. Divide the spinach, fish, prawns and tomato sauce between 2 gratin dishes. Mix the Parmesan, breadcrumbs and oats together and sprinkle over the top. Bake for 20 mins until golden and bubbling. Serve with cooked broccoli.

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Comments (17)

tessajr's picture

Delicious easy supper - my husband and I really enjoyed this dish.

paulapickard's picture

Delicious, definitely making this again! I recommend a good quality tomato base such as Loyd Grossmans jar of tomato and roasted garlic, yum!

eleanormayo's picture

Am not sure how this manages to hit all 5 of the fruit & veg portions in one go, but was an ok supper dish. Didn't blow me away, but was nice enough!

pewter's picture

This looked so different I wanted to love it but for us it fell short of something.Wasn't keen on the textures so we just picked out the fish really.Added scallops otherwise stuck to recipe.Wish I had added mushrooms as suggested above.

maryroselovesfood's picture

Can I just say "Yum"? This is delicious and tasty and so easy to make. Has been added to my mid week specials. Thank you so much for sharing.

55alan's picture

Really good. Such a tasty meal when on a diet

artemis_512's picture

Marilyn, I do health inspections based on the US FDA Food Code. We recommend cooking seafood to at least 145 degrees F (not sure in Celsius). Grab a properly calibrated food thermometer and you will have no worries.

I thought the dish was delicious, moist and not too acidic. Used tilapia as the fish and added sautéed onions, cilantro, and portobellos. Didn't have broccoli. Seasoned with Lawry's seasoned salt.

minibear's picture

That's served with baby new potatoes and healthy!!

minibear's picture

Really tasty little dish and healty to boot! Seved with baby we potatoes & broccoli, will definitely be making again!

paramar's picture

Can I use raw prawns in this recipe? If so can I add them to the rest of the ingredients before being baked, or should I cook them first? I don't want food poisoning!

maryechappell's picture

Liked this recipe and will be making again.

emsmith's picture

Lovely idea, and certainly very healthy, but needed a bit moore oomf. I like Julie's suggestion of adding pesto and Sarah's suggestion of chilli flakes. I also used frozen cod and prawns and perhaps didn't drain them properly during defrosting and before assembling, which made for a rather watery consistency. The oaty topping was nice, though. Will make again....with some adjustments.

chris_sw17's picture

Didn't think this was good at all. For some reason the combination of the fish, prawns and gratin just didn't work. A big disappointment.

sarahjelley's picture

Added some chilli flakes for a bit of a kick, will definitely be making again.

Frantic Flapjack's picture

Loved this. Made exactly as the recipe but doubled up to feed 4. Definitely a keeper.

juliebahrain's picture

I also wasn't too sure about this but it turned out to be a nice dish. I didn't have any fresh basil so I used dried and stirred in a teaspoonful of pesto as well.

brianmellor's picture

I was sceptical at first with this one, however I am now making it for the second time in a month. Lovely dish.

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